メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.609149080255 43.3101956832459, 144.608982477739 43.3101906836119, 144.603654169705 43.310032314195, 144.603682506434 43.3094196358504, 144.603716137879 43.3083557236334, 144.60517382377 43.3084582568064, 144.608235451128 43.3081523757906, 144.608699958665 43.3083256315399, 144.608797146386 43.3083585060218, 144.608864464613 43.3083711110118, 144.608994784792 43.3083544265517, 144.609376392942 43.308286702997, 144.609479021487 43.3082660898885, 144.609455941065 43.3084012353958, 144.609149080255 43.3101956832459)) ^^http://www.opengis.net/ont/geosparql#wktLiteral